All-Season Passenger Car Sport tire with Run-Flat Technology Made for Coupes, Sedans, Sports Cars and Performance Oriented Vehicles.* Reinforced rubber compound in sidewall* Special bead filler* Large outer blocks* Wide bead area* Silicon rubber compound* Enabling drivers to travel up to 50 miles at speeds less than 50mph after a puncture or pressure loss* Lowers heat generation to prevent uneven wear and tire separation when at zero pressure* Improve control and grip* Prevents tire separation when driving without air* Lowers rolling resistance